EP2797724A1 - Barrière de revêtement intérieure perfectionnée à partir d'un film mince multicouche - Google Patents

Barrière de revêtement intérieure perfectionnée à partir d'un film mince multicouche

Info

Publication number
EP2797724A1
EP2797724A1 EP12861351.0A EP12861351A EP2797724A1 EP 2797724 A1 EP2797724 A1 EP 2797724A1 EP 12861351 A EP12861351 A EP 12861351A EP 2797724 A1 EP2797724 A1 EP 2797724A1
Authority
EP
European Patent Office
Prior art keywords
layer
anionic
cationic
solution
eationie
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12861351.0A
Other languages
German (de)
English (en)
Other versions
EP2797724A4 (fr
EP2797724B1 (fr
Inventor
Jaime C. Grunlan
Morgan A. PRIOLO
Brian R. Bergman
John J. McHugh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Generale des Etablissements Michelin SCA
Texas A&M University System
Original Assignee
Michelin Recherche et Technique SA Switzerland
Compagnie Generale des Etablissements Michelin SCA
Michelin Recherche et Technique SA France
Texas A&M University System
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Michelin Recherche et Technique SA Switzerland, Compagnie Generale des Etablissements Michelin SCA, Michelin Recherche et Technique SA France, Texas A&M University System filed Critical Michelin Recherche et Technique SA Switzerland
Priority to EP18175017.5A priority Critical patent/EP3385093A1/fr
Publication of EP2797724A1 publication Critical patent/EP2797724A1/fr
Publication of EP2797724A4 publication Critical patent/EP2797724A4/fr
Application granted granted Critical
Publication of EP2797724B1 publication Critical patent/EP2797724B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

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    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
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    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C08J7/0423—Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
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    • B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N2015/086—Investigating permeability, pore-volume, or surface area of porous materials of films, membranes or pellicules
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31826—Of natural rubber

Definitions

  • This invention relate to the field of gas barriers and more specifically to the field of gas barriers for tires.
  • Thin layers with barriers to as and vapors are key components in a variety of applications, such as tires. For instance, there is an ncre sed need for im oved barrier performance of tires.
  • Conventional tires are typically composed of rubber and include an inner !ioer
  • Drawbacks to conventional tires include permeability of the inaer litter. Such permeability may allow oxygen to migrate through, the fire carcass to the steel belts, which ma facilitate oxidation of the steel belts. Further drawbacks include inefficient air retention. For instance, a entional tires may lose air pressure over a period of time and with use, which may sncrease rolling resistance of the tire.
  • the method includes exposing the rubber substrate to a first eationie solution to produce a first cationic layer on the rubber substrate.
  • the method also includes exposing the first cationic layer to a first anionic solution to produce a first anionic layer on the first cationic layer.
  • the method includes exposing the first anionic layer to a second cationic solution to produce a second cationic layer on the first anionic layer.
  • the method further includes exposing the second cationic layer to a second anionic solution to produce a second anionic layer on the second cationic layer,
  • a qnadiayer includes the first cationic layer, the first anionic layer, the second cationic layer,, and the second anionic layer.
  • the coating includes the quadlayer.
  • a tire that has a rubber substrate with a quadkyer.
  • the qnadiayer has a first cationic layer.
  • the qnadiayer also has a first anionic layer with the first cationic layer disposed between the rubber substrate and the first anionic layer
  • the qnadiayer has a second cationic .layer with the first anionic layer disposed between the first cationic layer and the second cationic layer.
  • the quadlayer has a second anionic layer with the second cationic layer disposed between the first anionic layer and the second anionic layer.
  • the method includes exposing ite rubber substrate to an atmmic solution to produce a first anionic layer o die rubb r substrate.
  • the method also Includes exposing the first anionic layer to a first eatiouie solution to produce a first eatiouie layer on. the first ani nic layer.
  • the method further includes exposing the first cationic layer to a second anionic solution to produce a second anionic layer on the first carionie layer, in addition, the method includes exposing the second anionic layer to a second eationic solution to produce a second eationie layer on the second anionic layer,
  • a quadkyer Includes the first anionic layer, the first eatiouie layer, the second anionic layer, and the second caiionic layer.
  • the coating includes the quad!ayer.
  • Figure I illustrates an embodiment of a qaadlayer on a rubber substrate
  • Figure 2 illustrates an embodiment of a. quadkyer, a rubber substrate; and a primer layer;
  • Figure 3 illustrates an embodiment of three quadlayers and a rubber substrate
  • Figure 4 illustrates thickness as a function of the number of quadlayers
  • Figure 5 il lustrates oxygen transmission rate as a function o f the number of quadlayers:
  • Figure 6 illustrates images of elasticity of coating.
  • a multilayer thin film coating method provides a rubber substrate with a gas transmission ret&rdant coating by alternately depositing positive and negative charged layers on the substrate.
  • the multilayer thin flira coating method provides two pairs of positive and. negative layers, winch two pairs comprise a quadlayer.
  • Embodiments include the multilayer thin film coating method producing a plurality of quadlayers on a rubber su strate. W thout limitation, a qnadlayer may provide a desired yield. Further, witho t limit tion, a plurality of qaadiayers provides a desired retardant to gas and vapor tmnsmission through the rubber substrate.
  • the positive and negative layers may have any desired thickness.
  • each layer is between about 0.5 nanometers and about 100 nanometer thick, alternatively etween about 1 nanometer and about: 100 nano eters thick, nd alternatively between about 0.5 nanometers and about 10 nanometers thick.
  • one or more of the positive layers are neutral rather than positively charged.
  • any desirable rubber substrate may be coated with the multilayer thin. film coating method.
  • suitable rubbers include natural rubber and synthetic rubber.
  • natural rubber comprises p iiyisoprene.
  • the synthetic rubber comprises butyl rubber, in. some embodiments ⁇ the rubber comprises a carbon black filled natural rubber formulation vulcanized with sulfur.
  • the negative charged (anionic) layers comprise layemfeie materials
  • the layerafeie materials include anionic polymers, colloidal particles, or any combinations thereof
  • suitable anionic polymers include polystyrene sulfonate, polymethaerylsc acid, poiyaerylic acid * poiyfaerylic acid, sodium salt), polyanethoSesulfonie acid sodium salt, poly viuylsuMtmie acid, sodium salt), or any combinations thereof in addition, without limitation, colloidal particles Include organic and/or inorganic materials. Further, without limitation, exampl s of colloidal particles include clays, colloidal silica.
  • Inorganic hydroxides silicon based polymers, polyoligomerie s isesqoieixane, carbon nanotubes, graphene, or any combinations thereof
  • Any type of clay suitable tor use in an anionic solution may he used.
  • suitable clays include sodium montmoriiionlte, heetonte, saponite, Wyoming bentonlte, balloysite, or any combinations thereof
  • the clay is sodium monimorilionite.
  • Any inorganic hydroxide that may provide retardaney to gas or vapor transmission may he used.
  • the Inorganic hydroxide includes aluminum hydroxide, magnesium hydroxide, or any combinations thereof.
  • the positive charge (anionic) layers comprise eat!onie materials.
  • one or more cationic layers are neutral.
  • the eaiiooie materials comprise polymers, colloidal particles, nanoparticles, or any combinations thereof
  • the polymers include cationic polymers, polymers with hydrogen bonding, or any combinations thereof.
  • suitable cationic polymers include branched polyethylenlmine, linear polyethylenimine, catkmk pol>3 ⁇ 4cryiatnkle, eationic poly dlailyidlmethylanimonlurn chloride, poiy(ailyl amine), polyfallyi.
  • suitable polymers with hydrogen bonding include polyethylene oxide, polypropylene oxide, polyvinyl methyl ether), polyvinyl alcohol, polyvinylpyrrolidone, poiyaliyisrnme, branched polyetl leniralne, linear polyethylenin-une, polyCaerylie acid), polyfmetha yllc acid), copolymers .hereof, or any combinations thereof!
  • colloidal particles include organic and/or inorganic materials.
  • examples of colloidal p rticle include clays, layered double hydroxides, inorganic hydroxides, silicon based polymers, po!yoiigomeric siisesquioxane, carbon nanotubes, graphene, or any combinations thereof
  • examples of suitable layered double hydr xides include hydrotalciie, magnesium LPff aluminum 1,011, or any combinations thereof.
  • the positive (or neutral) and negative layers are deposited on die rubber substrate by any suitable method
  • Embodiments include depositing the positive (or neutral) and negative layers on the robber substrate by any suitable liquid deposition method.
  • suitable methods include bath coating, spray coating- slot coating, spin coating, curtain coating, gravure coating, reverse roll coating, knife over roil (i.e>, gap) coating, metering (Meyer) rod coating, air knife coaling, or any combinatious thereof
  • Bath coating includes immersion or dip.
  • the positive (or neutral) and negative layers are deposited by bath, in other embodiments, the positive and negative layers are deposited b spray.
  • Figure I Illustrates an embodiment of rubber substrate 5 with coating 65 of uadlayer 10.
  • the multilayer thin film coating method includes exposing rubber substrate 5 to catlonse molecules in a eationic mixture to produce first eationic layer 25 on rubbe substrate 5.
  • the eationic mixture contains first layer eationic materials 20, in an embodiment, first layer eationic materials 20 are positively charged or neutral. In embodiments, first layer eationic materials 29 are neutral. In some embodiments, first layer eationic materials 20 am polymers with hydrogen bonding having a neutral charge.
  • Embodiments include first layer eationic materials 20 comprising polyethylene oxide.
  • first layer eationic material 20 comprising neutral materials (i.e., polyethylene oxide) may provide a desired yield.
  • rubber substrate 5 is negatively charged or neutral.
  • Embodiments include rubber substrate 5 having a negative charge.
  • a negatively charged rubber substrate 5 provides a desired adhesion.
  • the eationic mixture Includes an aqueous solution, of first layer eationic material 20, The aqueous solution ma e repared by any suitable meted. in embodiments, the aqueous solution includes first layer cationic materials- 20 and water.
  • first layer cation ie materials 20 may be dissolved in a mixed solvent, in whic one of the solvents is water and the other solvent is niisdb!e with, water (e.g,, water, meths.no!, and the like).
  • the solution may also contain colloidal particles in combination with polymers or alone. If positively charged. An suitable water may be used.
  • the water is deionized water, in some embodiments * the aqueous solution may include .from about 0,05 wl.% first layer cationic materials 20 to about L30 wt% first layer cationic materials 20, alternatively from: about 0,01 wt.% first layer cationic materials 20 t about 2.00 wt, first layer cationic materials 20, and further alternatively from, about 0,0 1 wt.% first layer cationic materials 20 to about 20,0 wt.% first layer cationic materials 20,
  • rubber substrate 5 may be exposed to the cationic mixture for any suitable period of time to produce first cationic layer 25.
  • rubber substrate 5 is exposed to the cationic mixture from about 1 second to about 20 minutes, alternatively from about I second to about 200 seconds, and alternatively from about 10 seconds to about 200 seconds, and further alternatively from about instantaneous to about 1 ,200 seconds.
  • the exposure time of rubber substrate 5 to the cationic mixture and the concentrators of first layer cationic materials 20 in the cationic mixture affect the thickness of first cationic layer 25. For instance, the higher the concentration of first layer cationic materials 20 and the longer the exposure time, the thicker die first canonic layer 25 produced by the multilayer thin film coating method.
  • multilayer thin film coating method includes removing rubber substrate 5 with the produced first cationic layer 25 from, the cationic mixture and then exposing rubber substrate 5 with firs- cationic layer 25 to anionic molecules in an anionic mixture to produce first anionic layer 30 on first cationic layer 25,
  • the anionic mixture contains first layer layerable materials 15.
  • the positive or neutral first cationic layer 25 attracts the anionic molecules to form the cationicfor neutral)- anionic pair of first cationic layer 25 and first anionic layer 30.
  • the anionic mixture includes an aqueous solution of first layer iaycrabie materials 15. in an embodiment, first layer layerable materials 15 comprise polyacrylie acid,.
  • the aqueous solution may be prepared by any suitable method, in embixli.uietits, the aqueou solution includes first layer layerable materials . 5 and water. First layer layerable materials f 5 may also be dissolved in a mixed solvent. In which one of the solvents is water and the other solvent is n tscihle with water (e.g., efhanoi, methanol, and the like). Combinations of anionic polymers and colloidal particles may be present in the aqueous solution. Any suitable water may be used. In embodiments, the wafer is deloni3 ⁇ 4ed water.
  • the aqueous solution may include from about 0.05 wf,% first, layer iayetahle materials 13 to about 1.50 wt.% first layer Severable materials 15, alternatively from about !XOI wt.% first Saver layerable materials 15 to about 2.00 wt.% first layer laverable materials 15. and further alternatively from about 0.001 wt.% first layer la.yera.ble materials 15 to about 20.0 wt.% first layer !ayerabie materials 15. in em ' bod1 ⁇ 2euts ? rubber substrate.
  • rubber substrate 5 with first eationie layer 25 may be exposed to the anionic mixture for any satiable period of time to produce first anionic layer 30,
  • rubber substrate 5 with first eationie layer 25 Is exposed to the anionic mixture from about I second to about 20 m fe. alternatively from, about ! second to about 200 seconds, and alternatively from about 10 seconds to about 200 seconds, and further alternatively from about instantaneous to about 1,20 seconds.
  • the exposure time of rubber substrate 5 with, first eationie. layer 25 to the anionic mixture and the concentration of first laye laverable materials 15 in the anionic mixture affect the thickness of the first ebic layer 30. Fo instance, the higher the concentration of first layer iayerahie materials 15 and the longer the exposure time, the thicker the first anionic layer 30 produced by the multila er thin film coating method.
  • die multilayer thin film coating method includes re-moving rubber substrate 5 with the produced first catiomc layer 25 and fef anionic layer 30 from the anionic mixture and then exposing rubber substrate 5 with first eationie layer 25 and first anionic layer 3 to cationic molecules in a cationic mixture to produce second eationie layer 35 on first anionic layer 30.
  • the eationie mixture contains second layer cationic materials 75.
  • second layer cationic materials 75 are positively charged or neutral.
  • second layer cationic materials 75 are positive, in some embodiments, second layer cationic materials 75 comprise polyetby!enlmine.
  • the cationic mixture Includes an aqueous solution of second layer cationic materials 75.
  • the aqueous solution may be prepared by any suitable method.
  • the aqueous solution includes second layer cationic materials 75 and wafer.
  • second layer cationic materials 75 may be dissolved in a mixed solvent, in which one of the solvents is water and the other solvent is miscib!e with water (e.g. f wafer, methanol, and the like), I ' he solution may also contain colloidal particles in combination with polymers or alone, if positively charged. Any suitable water may be used.
  • the water Is delonized water.
  • the aqueous solution may include from about 0.05 wt.% second layer cationic materials 75 to about 1 ,50 wt.% second layer cationic materials 75, alternatively from about 0,01 wt,% second layer eationie materials 75 io about 2.00 wt.% second layer cationic materials 75, and further alternatively from about 0.001 wt.% second layer eationie materials 75 to about 20.0 wt.% second layer cationic materials 75.
  • rubber substrate 5 may be exposed to the cationic mixture for any suitable period of time to produce second d ionic layer 35.
  • rubbe substrate 5 is exposed io the cationic mixture front about 1 second to about 20 minutes, alternatively from about I second to about 200 seconds, and alternatively from about 10 seconds to about 200 seconds, and further alternatively from abou instantaneous to about 1 ,200 seconds,
  • multilayer thin .film coating method Includes removing rubber substrate 5 with the p o uced first cationic layer 25, first anionic layer 30 * and second cationic layer 35 from die eadonie mixture and then exposing rubber substrate 5 with first cationic layer 25, first anionic layer 30, and. second cationic layer 35 Co anionic molecules in an anionic mixture to produce second anionic layer 40 on second eadonie layer 35-
  • the anionic mixture contains second layer layerable .materials 70.
  • the anionic mixture includes an aqueous solution of second layer layerable materials 70.
  • second layer layerable materials 70 comprise clay.
  • Embodiments include the clay comprising sodium nioutmoriilonite.
  • the aqueous solution may be prepared by any suitable method, in embodiments, the aqueous solution includes second layer layerable materials 70 and water.
  • layer layerabfe materials 70 may also be dissolved in a mixed solvent, in which: one of the solvents Is water and the other solvent is mlscl le with water (e.g.
  • the aqueous solution may include from about 0.05 wt.% second layer layerable materials- 70 to about 1 ,50 wt,% second layer layerable materials 70, alternatively from about 0,01 wi% second layer layerable materials 70 to about 2,00 wt ⁇ % second layer layerable materials 70, and. ftiriher alternatively from about 0,001 wt.% second layer layerable materials 70 to about 20,0 wt.% second layer layerable materials 70.
  • rubber substrate 5 with first eaiionic layer 25, first anionic layer 30, and second cationic layer 35 may be exposed to the anionic mixture for any suitable period of time to produce second anionic layer 40, in embodiments, rubber substrate 5 with first cationic layer 25, first anionic layer 30, and second cafsooie layer 35 is exposed to the anionic m ture from, about I second to about 20 minutes, alternatively from about 1 second to about 200 seconds, and alternatively f om about 10 seconds to about 200 seconds, and further alternatively frorn about instantaneous to about 1,200 seconds.
  • Quadiayer 10 is therefore produced on rubber substrate 5, fn embodiments as shown in Fi u e- 1 in which rubber substrate 5 has one quadiayer 10, coating 65 comprises quadiayer 10, fn embodiments, quadiayer 1 comprises first cationic layer 25, Ho anionic layer 30, second cationic layer 35, and second anionic layer 40. in an embodiment as shown m Figure 2, coating 65 also comprises primer layer 45. Primer layer 45 is disposed et een rubber substrate 5 and first cattonic layer 25 of siadkyer 10, Primer layer 45 may have any num e of layers. The layer of primer layer 45 proximate to rubber substrate S has a charge with an .
  • primer layer 45 is a bilayer having a first primer layer SO and. a second primer layer 85
  • first primer layer SO is a eatiomc layer (or alternatively neutral) comprising first primer layer materials 60
  • second primer layer 85 is an anionic layer comprising second primer layer materials 0.
  • First primer layer materials 60 comprise cationie materials, hi. an embo iment first primer layer materials 60 comprise polyethyieniniine.
  • Second primer layer materials 90 comprise iayerable materials.
  • second primer layer materials 90 comprise polyacryiic acid, Irs other embodiments (not shown), primer layer 45 has more than one bilayer.
  • tbe multilayer thin fij.ro coating method includes exposing rubber substrate 5 to cattonic molecules in. a cationie mixture to produce first primer layer SO on rubber substrate 5, '
  • the cationie mixture contains first primer layer materials 00, in an embodiment, first primer layer materials 60 are positively charged, or neutral
  • the cationie mixture includes an aqu ous solution of first primer layer materials 60
  • Tbe aqueous solution may be prepare by any suitable method, in embodiments, the aqueous solution Includes first primer layer materials 60 and water, In other embodiments, first primer layer materials 60 may be dissolved in a mixed solvent, in which one of the solvents is water and the other solvent is miscible with water (e,gANC water, methanol, and the like).
  • the solution may also contain colloidal particles in combination with polymers or alone, if posltiveiy charged. Any suitable water may be used. In embodiments, the water is deiomzed water. In some embodiments, the aqueous solution may include from, about 0.05 wi.% first primer layer materials 60 to about 1.50 wt.% first primer layer materials 60, alternatively from about 0,01 wt.% first primer layer materials 60 to about 2,00 wt,% first primer layer materials 60, and further alternatively from about 0,001 wt.% first primer layer materials 6 to about 20,0 wt.% first primer layer materials 60, In embodiments, rubber substrate 5 ma be exposed to the cationie mixture for any suitable period of time to produce first primer layer 80.
  • rubber substrate 5 is exposed to the cationie mixture from about I. second to about 20 minutes, alternatively from about 1 second to about 200 seconds, and alternatively from, about 10 seconds to about 200 seconds, and further alternati vely from about instantaneou to about ! ,200 seconds.
  • multilayer thin film coaling method includes removin rubber substrate 5 with tbe produced first primer layer 80 from the caboose mixture and then exposing rubber substrate 5 with first rimer layer 80 to anionic molecules in an .anion c mixture to produce second primer layer 85 on first primer layer 80, The anionic mi ture contains second primer layer materials 90.
  • the anionic mixture Includes an aqueous solution of second primer layer materials 90
  • the aqueous solution may be prepared by any suitable method.
  • the aqueous solution includes second primer layer materials 90 and water.
  • Second primer layer materials 90 may also be dissolved in a mixed solvent.
  • one of the solvents is water and tbe other solvent is miseih!e with water (e.g., ethanoi, methanol, and tbe like).
  • Combinations of anionic polymers and colloidal particles may be present in the aqueous solution. Any suitable water may he used, in embodiments, the water is deionteed water.
  • the aqueous solution may include from abou 0,05 wt.% second primer layer materials 90 to about 1.50 wt% second primer layer materials 90, alternatively from about 0.01 wt.% second primer layer materials 90 to about 2,00 wt% second primer layer materials 90, and further alternatively from about 0,001 wt.% second primer layer materials 90 to about 20.0 wt.% second primer layer materials 90,
  • the rubber substrate 5 with first primer layer 80 may be exposed to tbe anionic mixture for any suitable period of time to produce second primer layer 85.
  • rubber substrate 5 with first primer layer 80 is exposed to the anionic mixture from about 1 second to about 30 minutes, alternatively from about i second to about 200 seconds, and alternatively fr m, about 10 seconds to about 200 seconds,, and further alternatively from about Instantaneous to about L200 seconds. Rubber substrate 5 with primer layer 45 is then removed bom d e anionic mixture and then the multilayer thin film coating method proceeds to produce quadlayer 10.
  • the exposure steps are repeated with substrate S having quadlayer 1 continuously exposed to the caiionle mixture and then the anionic mixture to produce a coating 65 having multiple quadlayers 10.
  • the .repeated, exposure to the cationie mixture and tben the anionic mixture may continue until the desired number of quadlayers 1 is produced.
  • Coating 65 may have any sufficient number of quadlayers 10 to provide rubber substrate 5 with a desired retardant to gas or vapor transmission. In an embodiment, coating 65 has between about t quadlayer 10 and about 40 quadlayers 10, alternatively between about 1 quadlayer 10 and about 1,000 quadlayers 10,
  • the multilayer thin film coating method provides coated rubber substrate 5 (e.g., comprising coating 65) with a yield between abou 0, 1 % and about 100 %, alternatively between about I % and about 1 %.
  • embodiments include tbe multilayer thin Him coating method providing a coated robber substrate 5 having a gas transmission rate etween: about 0.03 w m J *atm) and about 100 ec/(m 3 ⁇ 4 day3 ⁇ 4tm ⁇ s . alternatively between, about 0.3 ec 3 ⁇ 4 2 *d 3 ⁇ 4trn) and about 100 ee/(ffi 3 *day*am , and alternatively between about 3 c (n? 2 *day*a «X!) and about 30 cc ⁇ m :' *day*atrn
  • the multilayer thin Sim coating method includes exposing rubber substrate 5 to the anionic mixture followed by exposure to die cationic mixture, I s such embodiment (not .illustrated), first mimi layer 30 is dep sited on rubber sisbsttate 5 with first cationic layer 25 deposited on first anionic layer 3 , and second anionic layer 40 is deposited o .first eatio e layer 25 followed by second cationic layer 35 deposited on second anionic layer 40 to produce quadiayer 1.0 with, the steps repeated until coating 65 has the desired thickness.
  • the multilayer thin film coating method -nay include beginning with exposure to the catlonie mixture followed by exposure to the anionic mixture or may include beginning with exposure to d e anionic mixture fbl lowed by exposure to the caisornc mixture,
  • one or more than one canonic layer i,edeem first eatfemc layer 25, second cationic layer 35, cationic layers in primer layer 45
  • one or more than one anionic layer i.e., first anionic layer 30, second anionic layer 40, anionic layers in primer layer 45
  • one or more cationic layers are comprised of the same materials, and/or one or more of the anionic layers are comprised of the same ani nic materials, it Is to be understood that coating 65 is not limited to one laycrable material but may include mom than one favorable material and/or more than one cationic material.
  • the multilayer thin film coating method includes rinsing rubber substrate 5 between each (or alternatively more than one) exposure step tie., step of exposing to cationic mixture or step of exposing to anionic mixture). For instance after rubber substrate 5 is removed ironvexposure to the cationic mixture, rubber substrate 5 with first cationic layer 25 is rinsed and then exposed to an anionic mixture, hi some embodiments, quadiayer ID Is rinsed before exposure to the same or another cationic and/or anionic mixture, in art embodiment, coating 65 is rinsed.
  • the rinsing is accomplished by any rinsing liquid suitable tor removing all or a portion of ionic liquid from rubber substrate 5 and any layer, in embodiments, the rinsing liquid includes deioniased water, methanol, or any combinations thereof.
  • the rinsing liquid Is deionized water
  • a layer may be rinsed tor any suitable period of time to remove all o a portion, of the Ionic liquid.
  • a layer is rinsed for a period of iime from about 5 seconds to about 5 minutes. In some emb d ments, 8 fe er is rinsed alter a portion of the exposure steps.
  • the multilayer thin f lm coating method includes drying rubber .substrate 5 between each (or alternati vely more than one) exposu step (Le., step of exposing to eatio e mixture or s e of exposing to anionic mixture ⁇ -
  • exposu step Le., step of exposing to eatio e mixture or s e of exposing to anionic mixture ⁇ -
  • rubber substrate 5 with first eatlonie layer 25 is dried and then exposed to an anionic mixture.
  • quadiayer 10 is dried before exposure to the same or another eafionic and/or anionic mixture.
  • coating 63 is dried. The drying Is accomplished by applying a drying gas to rubber substrate 5.
  • the drying gas may include any gas suitable for removing all or a portion of liquid from rubber substrate 5,
  • the drying gas includes air, nitrogen, or my eooAinations thereof la. an embod men , the drying gas is > In some embodiments, the air is filtered air.
  • the drying may be accomplished for any s itable period of time to remove all or a portion of the liqu id fr m a layer, quadlayer 10, and/or coating 65. In an etnlx>dlr»ent, the drying is ibr a period of time from about 5 seconds to about 500 seconds.
  • the layer is dried after rinsing and before exposure to the next exposure step
  • drying includes applying a heat source to the layer, quadlayer Hi and/or coating 65.
  • a heat source for instance, in an e bodiment * rubber substrate 5 is disposed in an oven Ibr a time sufficient to remove ail or a portion of the liquid from, a layer.
  • drying Is not performed until ail layers have been deposited, as a final ste before use.
  • ad itives may be adde to rubber substrate 5 in coating 65.
  • the additives may be mixed in anionic mixtures with layerable materials.
  • the additives are disposed in anionic mixtures that do not Include layerable materials.
  • coating 65 has a layer or layers of additi ves, in embodiments, the additives are anionic materials.
  • the additives may be used, for any desirable purpose. For instance, additives ma be used for protection of rubber substrate S against ultraviolet light o tor abrasion resistance.
  • any negatively charged material suitable for protection against ' ultraviolet light and Ibr use in coating 65 may he used, hi an embodiment, examples of .suitable additives for ultraviolet protection include titanium dioxide, or any combinations thereof In embodiments, the additive is titanium: dioxide.
  • suitable additives for abrasion resistance include crosslinkers. Any erosslmfcer suitable Ibr use with a rubber may be used, in an embodiment, erossi!rskers comprise a. di-afdehyde,. Examples of cross!mkers include glutaraldehyde.
  • the crossllnkers m y be used to crosslink the anionic layers and/or cationie layers (i.e., first C ionie laye 25 and first anionic layer 30).
  • rubber substrate 5 with coating 65 is exposed to additives in an anion ic mixture.
  • the pfl of the anionic and/or caikmlo solution is adjusted.
  • the pH of m anionic solution is between about 0 ami about 14,. alternatively between about I and. about 7, Embodiments include the pH of a cationie solution that is between about 0 and about 14, alternatively between about 3 and about 12.
  • the exposure steps m the anionic and. cationic mixtures may occur at any suitable temperature, in an embodiment, the exposure steps occur at ambient temperatures, in some embodiments, coating 65 is optically transparent.
  • rubber substrates 5 comprise a portion or all of the rubber portions of a tire.
  • coaling 65 may provide a barrier that limits gas (i.e., oxygen), vapor, and/or chemicals to pass through the tire.
  • Rubber substrates 5 with coating 65 may be used for an suitable portions of a tire such as, without limitation, th carcass, the innediner, and the like.
  • the carcass of a tire comprises rubber substrate 5 wiib coating 65.
  • the fol lowing examples are provided.
  • Branched poiyetby!enimine (M w 25,000 g/moi and » ⁇ 10.000 g/mol), polyethylene oxide (PHO) ⁇ M W TM 4,000,000 g/mol) and polyacr lie acid (PA A) (35 t.% in water, ::: 100,000 g/mol) were purchased fmra Sigma-Aidneh (Milwaukee, Wl) and used as received. 500 pm thick, single-slde-po!ished, silicon wafers were purchased ffc>wi University Wafe (South Boston, MA) and used as reflective substrates for film growth characterization via ei!ipsometry. Film Preparation.
  • Ail film e osition mixtures were prepared using ⁇ ⁇ deioniised water, from a. DiRE €T- : 5 UKrapme Water S stem, and rolled for one day (24 h) to chieve homogeneity.
  • the pH of 0.1 wt % a ueou s luti s of PEI were altered to 10 or 3 using L0 HC1, the pH of 0. ! wt. % aqueous s luti n of PEO were altered to 3 using I .0 HCl the pH of 0.2 wt. % aqueous solutions of PA A.
  • Figure 4 Illustrates thickness as a function of the number of quadlayers PEO PAA/PBEMMT when deposited on a silicon wafer and measured via e!iipsometry.
  • Figure 5 illustrates results of oxygen transmission rate (0TR) as a function of the number of quadlayers of PEO/PAA/PEi/MMT when deposited on a. I mm thick rubber plaque.
  • Figure 6 illustrates the elasticity of a coating of which the image on the left i 10 QLs on rubber, and the Image on the right is the same coating stretched at 20 inches per minute to 30% strain. This right Image showed no sign of mud-cracking and revealed the con formality o the coating to the stretched, rubber surface..

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Abstract

Pneumatique possédant un enrobage possédant une quadruple couche ou de multiples quadruples couches, et procédé produisant celui-ci. Selon un mode de réalisation, le procédé d'enrobage d'un substrat caoutchouteux comprend l'exposition du substrat caoutchouteux à une première solution cationique pour produire une première couche cationique sur le substrat caoutchouteux. Le procédé consiste également à exposer la première couche cationique à une première solution anionique afin de produire une première couche anionique sur la première couche cationique. De plus, le procédé consiste à exposer la première couche anionique à une seconde solution cationique afin de produire une seconde couche cationique sur la première couche anionique. Le procédé consiste en outre à exposer la seconde couche cationique à une seconde solution anionique afin de produire une seconde couche anionique sur la seconde couche cationique. Une quadruple couche comprenant la première couche cationique, la première couche anionique, la seconde couche cationique et la seconde couche anionique. L'enrobage comprend la quadruple couche.
EP12861351.0A 2011-12-30 2012-12-28 Barrière de revêtement intérieure perfectionnée à partir d'un film mince multicouche Active EP2797724B1 (fr)

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US201161581743P 2011-12-30 2011-12-30
PCT/US2012/071903 WO2013101975A1 (fr) 2011-12-30 2012-12-28 Barrière de revêtement intérieure perfectionnée à partir d'un film mince multicouche

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EP18175017.5A Division EP3385093A1 (fr) 2011-12-30 2012-12-28 Barrière de revêtement intérieure perfectionnée à partir d'un film mince multicouche
EP18175017.5A Division-Into EP3385093A1 (fr) 2011-12-30 2012-12-28 Barrière de revêtement intérieure perfectionnée à partir d'un film mince multicouche

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EP2797724A1 true EP2797724A1 (fr) 2014-11-05
EP2797724A4 EP2797724A4 (fr) 2015-06-03
EP2797724B1 EP2797724B1 (fr) 2018-07-04

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EP19163914.5A Withdrawn EP3521057A1 (fr) 2011-12-30 2012-12-28 Barrière de diffusion en couches minces
EP12861574.7A Not-in-force EP2797699B1 (fr) 2011-12-30 2012-12-28 Barrière de diffusion en couches minces
EP18175017.5A Withdrawn EP3385093A1 (fr) 2011-12-30 2012-12-28 Barrière de revêtement intérieure perfectionnée à partir d'un film mince multicouche
EP12861351.0A Active EP2797724B1 (fr) 2011-12-30 2012-12-28 Barrière de revêtement intérieure perfectionnée à partir d'un film mince multicouche

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EP19163914.5A Withdrawn EP3521057A1 (fr) 2011-12-30 2012-12-28 Barrière de diffusion en couches minces
EP12861574.7A Not-in-force EP2797699B1 (fr) 2011-12-30 2012-12-28 Barrière de diffusion en couches minces
EP18175017.5A Withdrawn EP3385093A1 (fr) 2011-12-30 2012-12-28 Barrière de revêtement intérieure perfectionnée à partir d'un film mince multicouche

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EP (4) EP3521057A1 (fr)
JP (6) JP6110876B2 (fr)
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BR (2) BR112014016332A8 (fr)
WO (2) WO2013101976A1 (fr)

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US11999135B2 (en) 2017-08-18 2024-06-04 Corning Incorporated Temporary bonding using polycationic polymers
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EP3521057A1 (fr) 2019-08-07
EP2797699A4 (fr) 2015-05-27
JP6556275B2 (ja) 2019-08-07
CN104114286A (zh) 2014-10-22
JP2015509043A (ja) 2015-03-26
BR112014016330A8 (pt) 2017-12-26
CN104093530A (zh) 2014-10-08
CN108480155A (zh) 2018-09-04
CN104114286B (zh) 2016-12-14
JP6110876B2 (ja) 2017-04-05
US10195642B2 (en) 2019-02-05
JP6423388B2 (ja) 2018-11-14
EP2797699B1 (fr) 2019-05-01
US20140363579A1 (en) 2014-12-11
WO2013101975A1 (fr) 2013-07-04
US20140363689A1 (en) 2014-12-11
WO2013101976A1 (fr) 2013-07-04
BR112014016332A2 (pt) 2017-08-22
BR112014016330A2 (pt) 2017-08-22
JP2019037976A (ja) 2019-03-14
JP2017100135A (ja) 2017-06-08
CN107101587A (zh) 2017-08-29
EP3385093A1 (fr) 2018-10-10
EP2797699A1 (fr) 2014-11-05
EP2797724A4 (fr) 2015-06-03
JP2015510444A (ja) 2015-04-09
JP6286081B2 (ja) 2018-02-28
JP2018065139A (ja) 2018-04-26
JP2016175084A (ja) 2016-10-06
BR112014016332A8 (pt) 2018-01-02
EP2797724B1 (fr) 2018-07-04
JP5960283B2 (ja) 2016-08-02

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